Pressure Measurement

Pressure Transmitter

What is Pressure Transmitter?
A pressure transmitter is a device for pressure measurement of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area. A pressure sensor usually acts as a transducer; it generates a signal as a function of the pressure imposed.

Working Principles
Differential Pressure Transmitter
The differential pressure transmitter includes two functional units: Main unit and Auxiliary Unit.

The main unit includes a sensor and process connection. The completely welded sensor module is a twin-chamber
system with an integral overload diaphragm, an absolute pressure sensor, a temperature sensor and the silicon differential pressure sensor. The absolute pressure sensor, which is only exposed to the pressure at the high pressure side, acts as a reference value to compensate for the static pressure. The temperature sensor as a temperature compensated reference value to compensate for the temperature drift.

Gauge Pressure Transmitter
The gauge pressure transmitter includes two functional units: Main unit and Auxiliary Unit.

The main unit includes gauge/temperature sensors and process connection. The low pressure span completely welded sensor module is a twin-chamber system with an integral overload diaphragm, and a silicon pressure sensor. The temperature sensor as a temperature compensated reference value to compensate for the temperature drift.

SPT200 DP/G

Differential / Absolute / Gauge Pressure Transmitter

EPT80

Miniaturized Pressure Transmitter

Model 264

Differential Pressure Transducer
HVAC Application

Model 223

High Purity Pressure Transducer

Model 267/267MR

Differential Pressure Transducer
HVAC Application

Model 224

High Purity Pressure Transducer

Model 225

High Purity Pressure Transducer

Model ATM/N/T

Depth Sensor

Model PTM

Pressure Transducer
Up to 1000 bar